Handover of aip-submarine NRP Tridente

摘要

The Portuguese Navy class 209PN AIP-submarine, NRP Tridente is handed over to the Portuguese Navy at Howaldtswerke-Deutsche Werft (HDW) shipyard in Kiel, Germany. The opened hatches/launchers are for deployment of the CIRCE system (Containerised Integrated Reaction Countermeasures Effectors). CIRCE is a rapid reaction multi-effect soft kill torpedo countermeasures system designed to defeat modern lightweight wire and non wire-guided acoustic homing heavyweight torpedoes. The second of class 209PN submarine NRP Arpao has conducted deep-water sea trials off Kristiansand in Norwegian waters. Arpao will be commissioned in 2011.